PMC:7558914 / 29026-29138 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T184","span":{"begin":0,"end":112},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Rigorous randomized clinical trials on the proposed interventions are needed in order to provide solid evidence."}